summaryrefslogtreecommitdiff
path: root/drivers/soc/mediatek/mtk-pmic-wrap.c
blob: 105597a885cb4f2db4314e5cc9194d701cf843b0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
/*
 * Copyright (c) 2014 MediaTek Inc.
 * Author: Flora Fu, MediaTek
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */
#include <linux/clk.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/reset.h>

#define PWRAP_MT8135_BRIDGE_IORD_ARB_EN		0x4
#define PWRAP_MT8135_BRIDGE_WACS3_EN		0x10
#define PWRAP_MT8135_BRIDGE_INIT_DONE3		0x14
#define PWRAP_MT8135_BRIDGE_WACS4_EN		0x24
#define PWRAP_MT8135_BRIDGE_INIT_DONE4		0x28
#define PWRAP_MT8135_BRIDGE_INT_EN		0x38
#define PWRAP_MT8135_BRIDGE_TIMER_EN		0x48
#define PWRAP_MT8135_BRIDGE_WDT_UNIT		0x50
#define PWRAP_MT8135_BRIDGE_WDT_SRC_EN		0x54

/* macro for wrapper status */
#define PWRAP_GET_WACS_RDATA(x)		(((x) >> 0) & 0x0000ffff)
#define PWRAP_GET_WACS_FSM(x)		(((x) >> 16) & 0x00000007)
#define PWRAP_GET_WACS_REQ(x)		(((x) >> 19) & 0x00000001)
#define PWRAP_STATE_SYNC_IDLE0		(1 << 20)
#define PWRAP_STATE_INIT_DONE0		(1 << 21)

/* macro for WACS FSM */
#define PWRAP_WACS_FSM_IDLE		0x00
#define PWRAP_WACS_FSM_REQ		0x02
#define PWRAP_WACS_FSM_WFDLE		0x04
#define PWRAP_WACS_FSM_WFVLDCLR		0x06
#define PWRAP_WACS_INIT_DONE		0x01
#define PWRAP_WACS_WACS_SYNC_IDLE	0x01
#define PWRAP_WACS_SYNC_BUSY		0x00

/* macro for device wrapper default value */
#define PWRAP_DEW_READ_TEST_VAL		0x5aa5
#define PWRAP_DEW_WRITE_TEST_VAL	0xa55a

/* macro for manual command */
#define PWRAP_MAN_CMD_SPI_WRITE		(1 << 13)
#define PWRAP_MAN_CMD_OP_CSH		(0x0 << 8)
#define PWRAP_MAN_CMD_OP_CSL		(0x1 << 8)
#define PWRAP_MAN_CMD_OP_CK		(0x2 << 8)
#define PWRAP_MAN_CMD_OP_OUTS		(0x8 << 8)
#define PWRAP_MAN_CMD_OP_OUTD		(0x9 << 8)
#define PWRAP_MAN_CMD_OP_OUTQ		(0xa << 8)

/* macro for slave device wrapper registers */
#define PWRAP_DEW_BASE			0xbc00
#define PWRAP_DEW_EVENT_OUT_EN		(PWRAP_DEW_BASE + 0x0)
#define PWRAP_DEW_DIO_EN		(PWRAP_DEW_BASE + 0x2)
#define PWRAP_DEW_EVENT_SRC_EN		(PWRAP_DEW_BASE + 0x4)
#define PWRAP_DEW_EVENT_SRC		(PWRAP_DEW_BASE + 0x6)
#define PWRAP_DEW_EVENT_FLAG		(PWRAP_DEW_BASE + 0x8)
#define PWRAP_DEW_READ_TEST		(PWRAP_DEW_BASE + 0xa)
#define PWRAP_DEW_WRITE_TEST		(PWRAP_DEW_BASE + 0xc)
#define PWRAP_DEW_CRC_EN		(PWRAP_DEW_BASE + 0xe)
#define PWRAP_DEW_CRC_VAL		(PWRAP_DEW_BASE + 0x10)
#define PWRAP_DEW_MON_GRP_SEL		(PWRAP_DEW_BASE + 0x12)
#define PWRAP_DEW_MON_FLAG_SEL		(PWRAP_DEW_BASE + 0x14)
#define PWRAP_DEW_EVENT_TEST		(PWRAP_DEW_BASE + 0x16)
#define PWRAP_DEW_CIPHER_KEY_SEL	(PWRAP_DEW_BASE + 0x18)
#define PWRAP_DEW_CIPHER_IV_SEL		(PWRAP_DEW_BASE + 0x1a)
#define PWRAP_DEW_CIPHER_LOAD		(PWRAP_DEW_BASE + 0x1c)
#define PWRAP_DEW_CIPHER_START		(PWRAP_DEW_BASE + 0x1e)
#define PWRAP_DEW_CIPHER_RDY		(PWRAP_DEW_BASE + 0x20)
#define PWRAP_DEW_CIPHER_MODE		(PWRAP_DEW_BASE + 0x22)
#define PWRAP_DEW_CIPHER_SWRST		(PWRAP_DEW_BASE + 0x24)
#define PWRAP_MT8173_DEW_CIPHER_IV0	(PWRAP_DEW_BASE + 0x26)
#define PWRAP_MT8173_DEW_CIPHER_IV1	(PWRAP_DEW_BASE + 0x28)
#define PWRAP_MT8173_DEW_CIPHER_IV2	(PWRAP_DEW_BASE + 0x2a)
#define PWRAP_MT8173_DEW_CIPHER_IV3	(PWRAP_DEW_BASE + 0x2c)
#define PWRAP_MT8173_DEW_CIPHER_IV4	(PWRAP_DEW_BASE + 0x2e)
#define PWRAP_MT8173_DEW_CIPHER_IV5	(PWRAP_DEW_BASE + 0x30)

enum pwrap_regs {
	PWRAP_MUX_SEL,
	PWRAP_WRAP_EN,
	PWRAP_DIO_EN,
	PWRAP_SIDLY,
	PWRAP_CSHEXT_WRITE,
	PWRAP_CSHEXT_READ,
	PWRAP_CSLEXT_START,
	PWRAP_CSLEXT_END,
	PWRAP_STAUPD_PRD,
	PWRAP_STAUPD_GRPEN,
	PWRAP_STAUPD_MAN_TRIG,
	PWRAP_STAUPD_STA,
	PWRAP_WRAP_STA,
	PWRAP_HARB_INIT,
	PWRAP_HARB_HPRIO,
	PWRAP_HIPRIO_ARB_EN,
	PWRAP_HARB_STA0,
	PWRAP_HARB_STA1,
	PWRAP_MAN_EN,
	PWRAP_MAN_CMD,
	PWRAP_MAN_RDATA,
	PWRAP_MAN_VLDCLR,
	PWRAP_WACS0_EN,
	PWRAP_INIT_DONE0,
	PWRAP_WACS0_CMD,
	PWRAP_WACS0_RDATA,
	PWRAP_WACS0_VLDCLR,
	PWRAP_WACS1_EN,
	PWRAP_INIT_DONE1,
	PWRAP_WACS1_CMD,
	PWRAP_WACS1_RDATA,
	PWRAP_WACS1_VLDCLR,
	PWRAP_WACS2_EN,
	PWRAP_INIT_DONE2,
	PWRAP_WACS2_CMD,
	PWRAP_WACS2_RDATA,
	PWRAP_WACS2_VLDCLR,
	PWRAP_INT_EN,
	PWRAP_INT_FLG_RAW,
	PWRAP_INT_FLG,
	PWRAP_INT_CLR,
	PWRAP_SIG_ADR,
	PWRAP_SIG_MODE,
	PWRAP_SIG_VALUE,
	PWRAP_SIG_ERRVAL,
	PWRAP_CRC_EN,
	PWRAP_TIMER_EN,
	PWRAP_TIMER_STA,
	PWRAP_WDT_UNIT,
	PWRAP_WDT_SRC_EN,
	PWRAP_WDT_FLG,
	PWRAP_DEBUG_INT_SEL,
	PWRAP_CIPHER_KEY_SEL,
	PWRAP_CIPHER_IV_SEL,
	PWRAP_CIPHER_RDY,
	PWRAP_CIPHER_MODE,
	PWRAP_CIPHER_SWRST,
	PWRAP_DCM_EN,
	PWRAP_DCM_DBC_PRD,

	/* MT8135 only regs */
	PWRAP_CSHEXT,
	PWRAP_EVENT_IN_EN,
	PWRAP_EVENT_DST_EN,
	PWRAP_RRARB_INIT,
	PWRAP_RRARB_EN,
	PWRAP_RRARB_STA0,
	PWRAP_RRARB_STA1,
	PWRAP_EVENT_STA,
	PWRAP_EVENT_STACLR,
	PWRAP_CIPHER_LOAD,
	PWRAP_CIPHER_START,

	/* MT8173 only regs */
	PWRAP_RDDMY,
	PWRAP_SI_CK_CON,
	PWRAP_DVFS_ADR0,
	PWRAP_DVFS_WDATA0,
	PWRAP_DVFS_ADR1,
	PWRAP_DVFS_WDATA1,
	PWRAP_DVFS_ADR2,
	PWRAP_DVFS_WDATA2,
	PWRAP_DVFS_ADR3,
	PWRAP_DVFS_WDATA3,
	PWRAP_DVFS_ADR4,
	PWRAP_DVFS_WDATA4,
	PWRAP_DVFS_ADR5,
	PWRAP_DVFS_WDATA5,
	PWRAP_DVFS_ADR6,
	PWRAP_DVFS_WDATA6,
	PWRAP_DVFS_ADR7,
	PWRAP_DVFS_WDATA7,
	PWRAP_SPMINF_STA,
	PWRAP_CIPHER_EN,
};

static int mt8173_regs[] = {
	[PWRAP_MUX_SEL] =		0x0,
	[PWRAP_WRAP_EN] =		0x4,
	[PWRAP_DIO_EN] =		0x8,
	[PWRAP_SIDLY] =			0xc,
	[PWRAP_RDDMY] =			0x10,
	[PWRAP_SI_CK_CON] =		0x14,
	[PWRAP_CSHEXT_WRITE] =		0x18,
	[PWRAP_CSHEXT_READ] =		0x1c,
	[PWRAP_CSLEXT_START] =		0x20,
	[PWRAP_CSLEXT_END] =		0x24,
	[PWRAP_STAUPD_PRD] =		0x28,
	[PWRAP_STAUPD_GRPEN] =		0x2c,
	[PWRAP_STAUPD_MAN_TRIG] =	0x40,
	[PWRAP_STAUPD_STA] =		0x44,
	[PWRAP_WRAP_STA] =		0x48,
	[PWRAP_HARB_INIT] =		0x4c,
	[PWRAP_HARB_HPRIO] =		0x50,
	[PWRAP_HIPRIO_ARB_EN] =		0x54,
	[PWRAP_HARB_STA0] =		0x58,
	[PWRAP_HARB_STA1] =		0x5c,
	[PWRAP_MAN_EN] =		0x60,
	[PWRAP_MAN_CMD] =		0x64,
	[PWRAP_MAN_RDATA] =		0x68,
	[PWRAP_MAN_VLDCLR] =		0x6c,
	[PWRAP_WACS0_EN] =		0x70,
	[PWRAP_INIT_DONE0] =		0x74,
	[PWRAP_WACS0_CMD] =		0x78,
	[PWRAP_WACS0_RDATA] =		0x7c,
	[PWRAP_WACS0_VLDCLR] =		0x80,
	[PWRAP_WACS1_EN] =		0x84,
	[PWRAP_INIT_DONE1] =		0x88,
	[PWRAP_WACS1_CMD] =		0x8c,
	[PWRAP_WACS1_RDATA] =		0x90,
	[PWRAP_WACS1_VLDCLR] =		0x94,
	[PWRAP_WACS2_EN] =		0x98,
	[PWRAP_INIT_DONE2] =		0x9c,
	[PWRAP_WACS2_CMD] =		0xa0,
	[PWRAP_WACS2_RDATA] =		0xa4,
	[PWRAP_WACS2_VLDCLR] =		0xa8,
	[PWRAP_INT_EN] =		0xac,
	[PWRAP_INT_FLG_RAW] =		0xb0,
	[PWRAP_INT_FLG] =		0xb4,
	[PWRAP_INT_CLR] =		0xb8,
	[PWRAP_SIG_ADR] =		0xbc,
	[PWRAP_SIG_MODE] =		0xc0,
	[PWRAP_SIG_VALUE] =		0xc4,
	[PWRAP_SIG_ERRVAL] =		0xc8,
	[PWRAP_CRC_EN] =		0xcc,
	[PWRAP_TIMER_EN] =		0xd0,
	[PWRAP_TIMER_STA] =		0xd4,
	[PWRAP_WDT_UNIT] =		0xd8,
	[PWRAP_WDT_SRC_EN] =		0xdc,
	[PWRAP_WDT_FLG] =		0xe0,
	[PWRAP_DEBUG_INT_SEL] =		0xe4,
	[PWRAP_DVFS_ADR0] =		0xe8,
	[PWRAP_DVFS_WDATA0] =		0xec,
	[PWRAP_DVFS_ADR1] =		0xf0,
	[PWRAP_DVFS_WDATA1] =		0xf4,
	[PWRAP_DVFS_ADR2] =		0xf8,
	[PWRAP_DVFS_WDATA2] =		0xfc,
	[PWRAP_DVFS_ADR3] =		0x100,
	[PWRAP_DVFS_WDATA3] =		0x104,
	[PWRAP_DVFS_ADR4] =		0x108,
	[PWRAP_DVFS_WDATA4] =		0x10c,
	[PWRAP_DVFS_ADR5] =		0x110,
	[PWRAP_DVFS_WDATA5] =		0x114,
	[PWRAP_DVFS_ADR6] =		0x118,
	[PWRAP_DVFS_WDATA6] =		0x11c,
	[PWRAP_DVFS_ADR7] =		0x120,
	[PWRAP_DVFS_WDATA7] =		0x124,
	[PWRAP_SPMINF_STA] =		0x128,
	[PWRAP_CIPHER_KEY_SEL] =	0x12c,
	[PWRAP_CIPHER_IV_SEL] =		0x130,
	[PWRAP_CIPHER_EN] =		0x134,
	[PWRAP_CIPHER_RDY] =		0x138,
	[PWRAP_CIPHER_MODE] =		0x13c,
	[PWRAP_CIPHER_SWRST] =		0x140,
	[PWRAP_DCM_EN] =		0x144,
	[PWRAP_DCM_DBC_PRD] =		0x148,
};

static int mt8135_regs[] = {
	[PWRAP_MUX_SEL] =		0x0,
	[PWRAP_WRAP_EN] =		0x4,
	[PWRAP_DIO_EN] =		0x8,
	[PWRAP_SIDLY] =			0xc,
	[PWRAP_CSHEXT] =		0x10,
	[PWRAP_CSHEXT_WRITE] =		0x14,
	[PWRAP_CSHEXT_READ] =		0x18,
	[PWRAP_CSLEXT_START] =		0x1c,
	[PWRAP_CSLEXT_END] =		0x20,
	[PWRAP_STAUPD_PRD] =		0x24,
	[PWRAP_STAUPD_GRPEN] =		0x28,
	[PWRAP_STAUPD_MAN_TRIG] =	0x2c,
	[PWRAP_STAUPD_STA] =		0x30,
	[PWRAP_EVENT_IN_EN] =		0x34,
	[PWRAP_EVENT_DST_EN] =		0x38,
	[PWRAP_WRAP_STA] =		0x3c,
	[PWRAP_RRARB_INIT] =		0x40,
	[PWRAP_RRARB_EN] =		0x44,
	[PWRAP_RRARB_STA0] =		0x48,
	[PWRAP_RRARB_STA1] =		0x4c,
	[PWRAP_HARB_INIT] =		0x50,
	[PWRAP_HARB_HPRIO] =		0x54,
	[PWRAP_HIPRIO_ARB_EN] =		0x58,
	[PWRAP_HARB_STA0] =		0x5c,
	[PWRAP_HARB_STA1] =		0x60,
	[PWRAP_MAN_EN] =		0x64,
	[PWRAP_MAN_CMD] =		0x68,
	[PWRAP_MAN_RDATA] =		0x6c,
	[PWRAP_MAN_VLDCLR] =		0x70,
	[PWRAP_WACS0_EN] =		0x74,
	[PWRAP_INIT_DONE0] =		0x78,
	[PWRAP_WACS0_CMD] =		0x7c,
	[PWRAP_WACS0_RDATA] =		0x80,
	[PWRAP_WACS0_VLDCLR] =		0x84,
	[PWRAP_WACS1_EN] =		0x88,
	[PWRAP_INIT_DONE1] =		0x8c,
	[PWRAP_WACS1_CMD] =		0x90,
	[PWRAP_WACS1_RDATA] =		0x94,
	[PWRAP_WACS1_VLDCLR] =		0x98,
	[PWRAP_WACS2_EN] =		0x9c,
	[PWRAP_INIT_DONE2] =		0xa0,
	[PWRAP_WACS2_CMD] =		0xa4,
	[PWRAP_WACS2_RDATA] =		0xa8,
	[PWRAP_WACS2_VLDCLR] =		0xac,
	[PWRAP_INT_EN] =		0xb0,
	[PWRAP_INT_FLG_RAW] =		0xb4,
	[PWRAP_INT_FLG] =		0xb8,
	[PWRAP_INT_CLR] =		0xbc,
	[PWRAP_SIG_ADR] =		0xc0,
	[PWRAP_SIG_MODE] =		0xc4,
	[PWRAP_SIG_VALUE] =		0xc8,
	[PWRAP_SIG_ERRVAL] =		0xcc,
	[PWRAP_CRC_EN] =		0xd0,
	[PWRAP_EVENT_STA] =		0xd4,
	[PWRAP_EVENT_STACLR] =		0xd8,
	[PWRAP_TIMER_EN] =		0xdc,
	[PWRAP_TIMER_STA] =		0xe0,
	[PWRAP_WDT_UNIT] =		0xe4,
	[PWRAP_WDT_SRC_EN] =		0xe8,
	[PWRAP_WDT_FLG] =		0xec,
	[PWRAP_DEBUG_INT_SEL] =		0xf0,
	[PWRAP_CIPHER_KEY_SEL] =	0x134,
	[PWRAP_CIPHER_IV_SEL] =		0x138,
	[PWRAP_CIPHER_LOAD] =		0x13c,
	[PWRAP_CIPHER_START] =		0x140,
	[PWRAP_CIPHER_RDY] =		0x144,
	[PWRAP_CIPHER_MODE] =		0x148,
	[PWRAP_CIPHER_SWRST] =		0x14c,
	[PWRAP_DCM_EN] =		0x15c,
	[PWRAP_DCM_DBC_PRD] =		0x160,
};

enum pwrap_type {
	PWRAP_MT8135,
	PWRAP_MT8173,
};

struct pmic_wrapper_type {
	int *regs;
	enum pwrap_type type;
	u32 arb_en_all;
};

static struct pmic_wrapper_type pwrap_mt8135 = {
	.regs = mt8135_regs,
	.type = PWRAP_MT8135,
	.arb_en_all = 0x1ff,
};

static struct pmic_wrapper_type pwrap_mt8173 = {
	.regs = mt8173_regs,
	.type = PWRAP_MT8173,
	.arb_en_all = 0x3f,
};

struct pmic_wrapper {
	struct device *dev;
	void __iomem *base;
	struct regmap *regmap;
	int *regs;
	enum pwrap_type type;
	u32 arb_en_all;
	struct clk *clk_spi;
	struct clk *clk_wrap;
	struct reset_control *rstc;

	struct reset_control *rstc_bridge;
	void __iomem *bridge_base;
};

static inline int pwrap_is_mt8135(struct pmic_wrapper *wrp)
{
	return wrp->type == PWRAP_MT8135;
}

static inline int pwrap_is_mt8173(struct pmic_wrapper *wrp)
{
	return wrp->type == PWRAP_MT8173;
}

static u32 pwrap_readl(struct pmic_wrapper *wrp, enum pwrap_regs reg)
{
	return readl(wrp->base + wrp->regs[reg]);
}

static void pwrap_writel(struct pmic_wrapper *wrp, u32 val, enum pwrap_regs reg)
{
	writel(val, wrp->base + wrp->regs[reg]);
}

static bool pwrap_is_fsm_idle(struct pmic_wrapper *wrp)
{
	u32 val = pwrap_readl(wrp, PWRAP_WACS2_RDATA);

	return PWRAP_GET_WACS_FSM(val) == PWRAP_WACS_FSM_IDLE;
}

static bool pwrap_is_fsm_vldclr(struct pmic_wrapper *wrp)
{
	u32 val = pwrap_readl(wrp, PWRAP_WACS2_RDATA);

	return PWRAP_GET_WACS_FSM(val) == PWRAP_WACS_FSM_WFVLDCLR;
}

static bool pwrap_is_sync_idle(struct pmic_wrapper *wrp)
{
	return pwrap_readl(wrp, PWRAP_WACS2_RDATA) & PWRAP_STATE_SYNC_IDLE0;
}

static bool pwrap_is_fsm_idle_and_sync_idle(struct pmic_wrapper *wrp)
{
	u32 val = pwrap_readl(wrp, PWRAP_WACS2_RDATA);

	return (PWRAP_GET_WACS_FSM(val) == PWRAP_WACS_FSM_IDLE) &&
		(val & PWRAP_STATE_SYNC_IDLE0);
}

static int pwrap_wait_for_state(struct pmic_wrapper *wrp,
		bool (*fp)(struct pmic_wrapper *))
{
	unsigned long timeout;

	timeout = jiffies + usecs_to_jiffies(255);

	do {
		if (time_after(jiffies, timeout))
			return fp(wrp) ? 0 : -ETIMEDOUT;
		if (fp(wrp))
			return 0;
	} while (1);
}

static int pwrap_write(struct pmic_wrapper *wrp, u32 adr, u32 wdata)
{
	int ret;

	ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_idle);
	if (ret)
		return ret;

	pwrap_writel(wrp, (1 << 31) | ((adr >> 1) << 16) | wdata,
			PWRAP_WACS2_CMD);

	return 0;
}

static int pwrap_read(struct pmic_wrapper *wrp, u32 adr, u32 *rdata)
{
	int ret;

	ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_idle);
	if (ret)
		return ret;

	pwrap_writel(wrp, (adr >> 1) << 16, PWRAP_WACS2_CMD);

	ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_vldclr);
	if (ret)
		return ret;

	*rdata = PWRAP_GET_WACS_RDATA(pwrap_readl(wrp, PWRAP_WACS2_RDATA));

	pwrap_writel(wrp, 1, PWRAP_WACS2_VLDCLR);

	return 0;
}

static int pwrap_regmap_read(void *context, u32 adr, u32 *rdata)
{
	return pwrap_read(context, adr, rdata);
}

static int pwrap_regmap_write(void *context, u32 adr, u32 wdata)
{
	return pwrap_write(context, adr, wdata);
}

static int pwrap_reset_spislave(struct pmic_wrapper *wrp)
{
	int ret, i;

	pwrap_writel(wrp, 0, PWRAP_HIPRIO_ARB_EN);
	pwrap_writel(wrp, 0, PWRAP_WRAP_EN);
	pwrap_writel(wrp, 1, PWRAP_MUX_SEL);
	pwrap_writel(wrp, 1, PWRAP_MAN_EN);
	pwrap_writel(wrp, 0, PWRAP_DIO_EN);

	pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_CSL,
			PWRAP_MAN_CMD);
	pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_OUTS,
			PWRAP_MAN_CMD);
	pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_CSH,
			PWRAP_MAN_CMD);

	for (i = 0; i < 4; i++)
		pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_OUTS,
				PWRAP_MAN_CMD);

	ret = pwrap_wait_for_state(wrp, pwrap_is_sync_idle);
	if (ret) {
		dev_err(wrp->dev, "%s fail, ret=%d\n", __func__, ret);
		return ret;
	}

	pwrap_writel(wrp, 0, PWRAP_MAN_EN);
	pwrap_writel(wrp, 0, PWRAP_MUX_SEL);

	return 0;
}

/*
 * pwrap_init_sidly - configure serial input delay
 *
 * This configures the serial input delay. We can configure 0, 2, 4 or 6ns
 * delay. Do a read test with all possible values and chose the best delay.
 */
static int pwrap_init_sidly(struct pmic_wrapper *wrp)
{
	u32 rdata;
	u32 i;
	u32 pass = 0;
	signed char dly[16] = {
		-1, 0, 1, 0, 2, -1, 1, 1, 3, -1, -1, -1, 3, -1, 2, 1
	};

	for (i = 0; i < 4; i++) {
		pwrap_writel(wrp, i, PWRAP_SIDLY);
		pwrap_read(wrp, PWRAP_DEW_READ_TEST, &rdata);
		if (rdata == PWRAP_DEW_READ_TEST_VAL) {
			dev_dbg(wrp->dev, "[Read Test] pass, SIDLY=%x\n", i);
			pass |= 1 << i;
		}
	}

	if (dly[pass] < 0) {
		dev_err(wrp->dev, "sidly pass range 0x%x not continuous\n",
				pass);
		return -EIO;
	}

	pwrap_writel(wrp, dly[pass], PWRAP_SIDLY);

	return 0;
}

static int pwrap_init_reg_clock(struct pmic_wrapper *wrp)
{
	if (pwrap_is_mt8135(wrp)) {
		pwrap_writel(wrp, 0x4, PWRAP_CSHEXT);
		pwrap_writel(wrp, 0x0, PWRAP_CSHEXT_WRITE);
		pwrap_writel(wrp, 0x4, PWRAP_CSHEXT_READ);
		pwrap_writel(wrp, 0x0, PWRAP_CSLEXT_START);
		pwrap_writel(wrp, 0x0, PWRAP_CSLEXT_END);
	} else {
		pwrap_writel(wrp, 0x0, PWRAP_CSHEXT_WRITE);
		pwrap_writel(wrp, 0x4, PWRAP_CSHEXT_READ);
		pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_START);
		pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_END);
	}

	return 0;
}

static bool pwrap_is_cipher_ready(struct pmic_wrapper *wrp)
{
	return pwrap_readl(wrp, PWRAP_CIPHER_RDY) & 1;
}

static bool pwrap_is_pmic_cipher_ready(struct pmic_wrapper *wrp)
{
	u32 rdata;
	int ret;

	ret = pwrap_read(wrp, PWRAP_DEW_CIPHER_RDY, &rdata);
	if (ret)
		return 0;

	return rdata == 1;
}

static int pwrap_init_cipher(struct pmic_wrapper *wrp)
{
	int ret;
	u32 rdata;

	pwrap_writel(wrp, 0x1, PWRAP_CIPHER_SWRST);
	pwrap_writel(wrp, 0x0, PWRAP_CIPHER_SWRST);
	pwrap_writel(wrp, 0x1, PWRAP_CIPHER_KEY_SEL);
	pwrap_writel(wrp, 0x2, PWRAP_CIPHER_IV_SEL);

	if (pwrap_is_mt8135(wrp)) {
		pwrap_writel(wrp, 1, PWRAP_CIPHER_LOAD);
		pwrap_writel(wrp, 1, PWRAP_CIPHER_START);
	} else {
		pwrap_writel(wrp, 1, PWRAP_CIPHER_EN);
	}

	/* Config cipher mode @PMIC */
	pwrap_write(wrp, PWRAP_DEW_CIPHER_SWRST, 0x1);
	pwrap_write(wrp, PWRAP_DEW_CIPHER_SWRST, 0x0);
	pwrap_write(wrp, PWRAP_DEW_CIPHER_KEY_SEL, 0x1);
	pwrap_write(wrp, PWRAP_DEW_CIPHER_IV_SEL, 0x2);
	pwrap_write(wrp, PWRAP_DEW_CIPHER_LOAD, 0x1);
	pwrap_write(wrp, PWRAP_DEW_CIPHER_START, 0x1);

	/* wait for cipher data ready@AP */
	ret = pwrap_wait_for_state(wrp, pwrap_is_cipher_ready);
	if (ret) {
		dev_err(wrp->dev, "cipher data ready@AP fail, ret=%d\n", ret);
		return ret;
	}

	/* wait for cipher data ready@PMIC */
	ret = pwrap_wait_for_state(wrp, pwrap_is_pmic_cipher_ready);
	if (ret) {
		dev_err(wrp->dev, "timeout waiting for cipher data ready@PMIC\n");
		return ret;
	}

	/* wait for cipher mode idle */
	pwrap_write(wrp, PWRAP_DEW_CIPHER_MODE, 0x1);
	ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_idle_and_sync_idle);
	if (ret) {
		dev_err(wrp->dev, "cipher mode idle fail, ret=%d\n", ret);
		return ret;
	}

	pwrap_writel(wrp, 1, PWRAP_CIPHER_MODE);

	/* Write Test */
	if (pwrap_write(wrp, PWRAP_DEW_WRITE_TEST, PWRAP_DEW_WRITE_TEST_VAL) ||
	    pwrap_read(wrp, PWRAP_DEW_WRITE_TEST, &rdata) ||
			(rdata != PWRAP_DEW_WRITE_TEST_VAL)) {
		dev_err(wrp->dev, "rdata=0x%04X\n", rdata);
		return -EFAULT;
	}

	return 0;
}

static int pwrap_init(struct pmic_wrapper *wrp)
{
	int ret;
	u32 rdata;

	reset_control_reset(wrp->rstc);
	if (wrp->rstc_bridge)
		reset_control_reset(wrp->rstc_bridge);

	if (pwrap_is_mt8173(wrp)) {
		/* Enable DCM */
		pwrap_writel(wrp, 3, PWRAP_DCM_EN);
		pwrap_writel(wrp, 0, PWRAP_DCM_DBC_PRD);
	}

	/* Reset SPI slave */
	ret = pwrap_reset_spislave(wrp);
	if (ret)
		return ret;

	pwrap_writel(wrp, 1, PWRAP_WRAP_EN);

	pwrap_writel(wrp, wrp->arb_en_all, PWRAP_HIPRIO_ARB_EN);

	pwrap_writel(wrp, 1, PWRAP_WACS2_EN);

	ret = pwrap_init_reg_clock(wrp);
	if (ret)
		return ret;

	/* Setup serial input delay */
	ret = pwrap_init_sidly(wrp);
	if (ret)
		return ret;

	/* Enable dual IO mode */
	pwrap_write(wrp, PWRAP_DEW_DIO_EN, 1);

	/* Check IDLE & INIT_DONE in advance */
	ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_idle_and_sync_idle);
	if (ret) {
		dev_err(wrp->dev, "%s fail, ret=%d\n", __func__, ret);
		return ret;
	}

	pwrap_writel(wrp, 1, PWRAP_DIO_EN);

	/* Read Test */
	pwrap_read(wrp, PWRAP_DEW_READ_TEST, &rdata);
	if (rdata != PWRAP_DEW_READ_TEST_VAL) {
		dev_err(wrp->dev, "Read test failed after switch to DIO mode: 0x%04x != 0x%04x\n",
				PWRAP_DEW_READ_TEST_VAL, rdata);
		return -EFAULT;
	}

	/* Enable encryption */
	ret = pwrap_init_cipher(wrp);
	if (ret)
		return ret;

	/* Signature checking - using CRC */
	if (pwrap_write(wrp, PWRAP_DEW_CRC_EN, 0x1))
		return -EFAULT;

	pwrap_writel(wrp, 0x1, PWRAP_CRC_EN);
	pwrap_writel(wrp, 0x0, PWRAP_SIG_MODE);
	pwrap_writel(wrp, PWRAP_DEW_CRC_VAL, PWRAP_SIG_ADR);
	pwrap_writel(wrp, wrp->arb_en_all, PWRAP_HIPRIO_ARB_EN);

	if (pwrap_is_mt8135(wrp))
		pwrap_writel(wrp, 0x7, PWRAP_RRARB_EN);

	pwrap_writel(wrp, 0x1, PWRAP_WACS0_EN);
	pwrap_writel(wrp, 0x1, PWRAP_WACS1_EN);
	pwrap_writel(wrp, 0x1, PWRAP_WACS2_EN);
	pwrap_writel(wrp, 0x5, PWRAP_STAUPD_PRD);
	pwrap_writel(wrp, 0xff, PWRAP_STAUPD_GRPEN);

	if (pwrap_is_mt8135(wrp)) {
		/* enable pwrap events and pwrap bridge in AP side */
		pwrap_writel(wrp, 0x1, PWRAP_EVENT_IN_EN);
		pwrap_writel(wrp, 0xffff, PWRAP_EVENT_DST_EN);
		writel(0x7f, wrp->bridge_base + PWRAP_MT8135_BRIDGE_IORD_ARB_EN);
		writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WACS3_EN);
		writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WACS4_EN);
		writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WDT_UNIT);
		writel(0xffff, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WDT_SRC_EN);
		writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_TIMER_EN);
		writel(0x7ff, wrp->bridge_base + PWRAP_MT8135_BRIDGE_INT_EN);

		/* enable PMIC event out and sources */
		if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
				pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
			dev_err(wrp->dev, "enable dewrap fail\n");
			return -EFAULT;
		}
	} else {
		/* PMIC_DEWRAP enables */
		if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
				pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
			dev_err(wrp->dev, "enable dewrap fail\n");
			return -EFAULT;
		}
	}

	/* Setup the init done registers */
	pwrap_writel(wrp, 1, PWRAP_INIT_DONE2);
	pwrap_writel(wrp, 1, PWRAP_INIT_DONE0);
	pwrap_writel(wrp, 1, PWRAP_INIT_DONE1);

	if (pwrap_is_mt8135(wrp)) {
		writel(1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_INIT_DONE3);
		writel(1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_INIT_DONE4);
	}

	return 0;
}

static irqreturn_t pwrap_interrupt(int irqno, void *dev_id)
{
	u32 rdata;
	struct pmic_wrapper *wrp = dev_id;

	rdata = pwrap_readl(wrp, PWRAP_INT_FLG);

	dev_err(wrp->dev, "unexpected interrupt int=0x%x\n", rdata);

	pwrap_writel(wrp, 0xffffffff, PWRAP_INT_CLR);

	return IRQ_HANDLED;
}

static const struct regmap_config pwrap_regmap_config = {
	.reg_bits = 16,
	.val_bits = 16,
	.reg_stride = 2,
	.reg_read = pwrap_regmap_read,
	.reg_write = pwrap_regmap_write,
	.max_register = 0xffff,
};

static struct of_device_id of_pwrap_match_tbl[] = {
	{
		.compatible = "mediatek,mt8135-pwrap",
		.data = &pwrap_mt8135,
	}, {
		.compatible = "mediatek,mt8173-pwrap",
		.data = &pwrap_mt8173,
	}, {
		/* sentinel */
	}
};
MODULE_DEVICE_TABLE(of, of_pwrap_match_tbl);

static int pwrap_probe(struct platform_device *pdev)
{
	int ret, irq;
	struct pmic_wrapper *wrp;
	struct device_node *np = pdev->dev.of_node;
	const struct of_device_id *of_id =
		of_match_device(of_pwrap_match_tbl, &pdev->dev);
	const struct pmic_wrapper_type *type;
	struct resource *res;

	wrp = devm_kzalloc(&pdev->dev, sizeof(*wrp), GFP_KERNEL);
	if (!wrp)
		return -ENOMEM;

	platform_set_drvdata(pdev, wrp);

	type = of_id->data;
	wrp->regs = type->regs;
	wrp->type = type->type;
	wrp->arb_en_all = type->arb_en_all;
	wrp->dev = &pdev->dev;

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pwrap");
	wrp->base = devm_ioremap_resource(wrp->dev, res);
	if (IS_ERR(wrp->base))
		return PTR_ERR(wrp->base);

	wrp->rstc = devm_reset_control_get(wrp->dev, "pwrap");
	if (IS_ERR(wrp->rstc)) {
		ret = PTR_ERR(wrp->rstc);
		dev_dbg(wrp->dev, "cannot get pwrap reset: %d\n", ret);
		return ret;
	}

	if (pwrap_is_mt8135(wrp)) {
		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
				"pwrap-bridge");
		wrp->bridge_base = devm_ioremap_resource(wrp->dev, res);
		if (IS_ERR(wrp->bridge_base))
			return PTR_ERR(wrp->bridge_base);

		wrp->rstc_bridge = devm_reset_control_get(wrp->dev, "pwrap-bridge");
		if (IS_ERR(wrp->rstc_bridge)) {
			ret = PTR_ERR(wrp->rstc_bridge);
			dev_dbg(wrp->dev, "cannot get pwrap-bridge reset: %d\n", ret);
			return ret;
		}
	}

	wrp->clk_spi = devm_clk_get(wrp->dev, "spi");
	if (IS_ERR(wrp->clk_spi)) {
		dev_dbg(wrp->dev, "failed to get clock: %ld\n", PTR_ERR(wrp->clk_spi));
		return PTR_ERR(wrp->clk_spi);
	}

	wrp->clk_wrap = devm_clk_get(wrp->dev, "wrap");
	if (IS_ERR(wrp->clk_wrap)) {
		dev_dbg(wrp->dev, "failed to get clock: %ld\n", PTR_ERR(wrp->clk_wrap));
		return PTR_ERR(wrp->clk_wrap);
	}

	ret = clk_prepare_enable(wrp->clk_spi);
	if (ret)
		return ret;

	ret = clk_prepare_enable(wrp->clk_wrap);
	if (ret)
		goto err_out1;

	/* Enable internal dynamic clock */
	pwrap_writel(wrp, 1, PWRAP_DCM_EN);
	pwrap_writel(wrp, 0, PWRAP_DCM_DBC_PRD);

	/*
	 * The PMIC could already be initialized by the bootloader.
	 * Skip initialization here in this case.
	 */
	if (!pwrap_readl(wrp, PWRAP_INIT_DONE2)) {
		ret = pwrap_init(wrp);
		if (ret) {
			dev_dbg(wrp->dev, "init failed with %d\n", ret);
			goto err_out2;
		}
	}

	if (!(pwrap_readl(wrp, PWRAP_WACS2_RDATA) & PWRAP_STATE_INIT_DONE0)) {
		dev_dbg(wrp->dev, "initialization isn't finished\n");
		return -ENODEV;
	}

	/* Initialize watchdog, may not be done by the bootloader */
	pwrap_writel(wrp, 0xf, PWRAP_WDT_UNIT);
	pwrap_writel(wrp, 0xffffffff, PWRAP_WDT_SRC_EN);
	pwrap_writel(wrp, 0x1, PWRAP_TIMER_EN);
	pwrap_writel(wrp, ~((1 << 31) | (1 << 1)), PWRAP_INT_EN);

	irq = platform_get_irq(pdev, 0);
	ret = devm_request_irq(wrp->dev, irq, pwrap_interrupt, IRQF_TRIGGER_HIGH,
			"mt-pmic-pwrap", wrp);
	if (ret)
		goto err_out2;

	wrp->regmap = devm_regmap_init(wrp->dev, NULL, wrp, &pwrap_regmap_config);
	if (IS_ERR(wrp->regmap))
		return PTR_ERR(wrp->regmap);

	ret = of_platform_populate(np, NULL, NULL, wrp->dev);
	if (ret) {
		dev_dbg(wrp->dev, "failed to create child devices at %s\n",
				np->full_name);
		goto err_out2;
	}

	return 0;

err_out2:
	clk_disable_unprepare(wrp->clk_wrap);
err_out1:
	clk_disable_unprepare(wrp->clk_spi);

	return ret;
}

static struct platform_driver pwrap_drv = {
	.driver = {
		.name = "mt-pmic-pwrap",
		.of_match_table = of_match_ptr(of_pwrap_match_tbl),
	},
	.probe = pwrap_probe,
};

module_platform_driver(pwrap_drv);

MODULE_AUTHOR("Flora Fu, MediaTek");
MODULE_DESCRIPTION("MediaTek MT8135 PMIC Wrapper Driver");
MODULE_LICENSE("GPL v2");